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Solved problems:
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ID
Title
Source
Authors
Difficulty
1020
Rope
Autumn School Contest 2000
15391
99
1030
Titanic
Ural Championship 1999
1715
882
1043
Cover an Arc
USU Championship 2000
919
1622
1046
Geometrical Dreams
USU Local Contest. March 2000
785
1873
1052
Rabbit Hunt
USU Local Contest. March 2000
6343
234
1058
Chocolate
NEERC 2000 Central Subregional
521
2792
1065
Frontier
NEERC 2000
999
1394
1075
Thread in a Space
USU Personal Contest 2001
667
2019
1084
Goat in the Garden
Spring School Contest 2001
8970
149
1093
Darts
USU Local Contest. March 2001
636
1972
1103
Pencils and Circles
Tetrahedron Team Online Contest May 2001
969
501
1111
Squares
Bulgarian Online Contest September 2001
1255
389
1130
Nikifor's Walk
USU Championship 2001
518
933
1159
Fence
NEERC 2001 Northern Subregional
648
750
1163
Chapaev
NEERC 2001 Northern Subregional
105
4293
1168
Radio Stations
Romanian Online Contest December 2001
667
729
1170
Desert
Romanian Online Contest December 2001
325
1474
1185
Wall
NEERC 2001
1639
300
1192
Ball in a Dream
Spring School Contest 2002
4561
108
1199
Mouse
128
3407
1207
Median on the Plane
USU Local Contest. March 2002
3957
125
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1658
299
1232
Asteroid Landing
NEERC 2002 Central Subregional
202
2356
1234
Bricks
NEERC 2002
724
681
1239
Ghost Busters
NEERC 2002
152
3087
1246
Tethered Dog
USU Personal Contest 2003
1501
332
1256
Cemetery Guard
USU Local Contest. March 2003
210
2281
1258
Pool
Autumn School Contest 2003
1200
418
1265
Mirror
USU Championship 2003
319
1537
1271
Sailing Directions
USU Championship 2003
98
4681
1281
River Basin
NEERC 2003 Central Subregional
354
1390
1285
Thread in a Hyperspace
USU Personal Contest 2004
304
1617
1294
Mars Satellites
Spring School Contest 2004
1612
313
1305
Convex Hull
Ural Championship 1998
711
705
1308
Dean's Pyramid
Ural Championship 2004. Round 1
168
2856
1312
Tray
Ural Championship 2004. Round 1
159
3008
1317
Hail
Ural Championship 2004. Round 2
465
1070
1328
Fireball
Autumn School Contest 2004
353
1408
1331
Vladislava
Autumn School Contest 2004
504
994
1332
Genie Bomber
Autumn School Contest 2004
812
622
1333
Genie Bomber 2
Autumn School Contest 2004
2352
216
1340
Cucaracha
USU Championship 2004
93
4978
1341
Device
USU Championship 2004
442
1134
1348
Goat in the Garden 2
Spring School Contest 2005
2783
184
1351
Good Gnusmas – Dead Gnusmas
Spring School Contest 2005
971
523
1372
Death Star
Ural Championship 2005. Round 1
75
6057
1373
Pictura ex Machina
Ural Championship 2005. Round 1
601
843
1384
Goat in the Garden 4
Petrozavodsk Summer 2005. Moscow+Ural Contest
92
5048
1397
Points Game
272
1702
1405
Goat in the Garden 5
Autumn School Contest 2005
712
713
1412
Autumn Tide
USU Championship 2005
330
1510
1415
Mobile Life
USU Championship 2005
45
9332
1418
Military Story
USU Championship 2005
553
912
1422
Fireflies
Timus Top Coders: First Challenge
571
865
1429
Biscuits
Timus Top Coders: First Challenge
177
2687
1436
Billboard
USU Personal Contest 2006
590
835
1442
Floo Powder
Ural Championship 2006
144
3234
1444
Elephpotamus
Ural Championship 2006
1757
282
1451
Beerhouse Tale
Timus Top Coders: Second Challenge
488
995
1460
Wires
Petrozavodsk Winter 2006. USU Contest
105
4209
1464
Light
Petrozavodsk Winter 2006. USU Contest
156
2916
1469
No Smoking!
Petrozavodsk Summer 2006. Ural+Orel Contest
484
971
1475
Ryaba Hen
Petrozavodsk Summer 2006. Ural+Orel Contest
114
3869
1477
Airplanes
Petrozavodsk Summer 2006. Ural+Orel Contest
149
3018
1482
Triangle Game
USU Championship 2006
146
3067
1489
Points on a Parallelepiped
Autumn School Contest 2006
1212
391
1504
Good Manners
NEERC 2006 Eastern Subregional
204
2227
1514
National Park
Timus Top Coders: Third Challenge
248
1828
1520
Empire Strikes Back
Timus Top Coders: Third Challenge
181
2470
1538
Towers of Guard
USU Personal Contest 2007
351
1286
1550
Dean's Pyramid 3
Ural Championship 2007
763
595
1556
Multishot in the Secret Cow Level
Petrozavodsk Summer 2007. NSU Contest
38
9275
1562
GM-pineapple
USU Championship 2007
1089
404
1566
Triangular Postcards
USU Championship 2007
133
3104
1572
Yekaterinozavodsk Great Well
Autumn School Contest 2007
3050
145
1578
Mammoth Hunt
Autumn School Contest 2007
498
873
1583
Cheese
NEERC 2007 Eastern Subregional
224
1889
1588
Jamaica
NEERC 2007 Eastern Subregional
1355
324
1599
Winding Number
103
1952
1600
Airport
USU Personal Contest 2008
766
555
1616
Square Country 4
Ural Championship 2008
97
3999
1626
Interfering Segment
Petrozavodsk Winter 2008. ITMO Contest
41
8148
1632
Lasers
USU Championship 2008
82
4464
1637
Triangle Game 2
USU Championship 2008
114
3312
1640
Circle of Winter
Autumn School Contest 2008
2355
173
1647
Divide an Island!
Autumn School Contest 2008
484
829
1653
Death Conveyor
NEERC 2008 Eastern Subregional
50
6815
1659
Regular Triangles
NEERC 2008 Eastern Subregional
622
647
1660
The Island of Bad Luck
Petrozavodsk Winter 2008. USU Contest
51
6634
1662
Goat in the Garden 6
Petrozavodsk Winter 2008. USU Contest
77
4652
1679
Scrooge's Tower
Petrozavodsk Summer 2008. USU Contest
389
1010
1681
Brother Bear's Garden
USU Personal Contest 2009
98
3692
1686
Photovoltaic Spaceship
USU Personal Contest 2009
260
1477
1697
Sniper Shot
Petrozavodsk Winter 2009. USU Contest
61
5598
1703
Robotic Arm
Ural Championship 2009
298
1285
1710
Boris, You Are Wrong!
Ural Championship 2009
599
650
1719
Kill the Shaitan-Boss
NEERC 2009 Eastern Subregional
245
1490
1722
Observation Deck
Ural Regional School Programming Contest 2009
277
1322
1733
Forgotten Technology
USU Championship 2009
72
4611
1750
Pakhom and the Gully
Petrozavodsk Summer 2009. Ufa SATU Contest
293
1225
1753
Bookshelf
USU Personal Contest 2010
1119
325
1754
Explosion in a Pyramid
USU Personal Contest 2010
563
641
1768
Circular Strings
Ural Championship 2010
301
1174
1775
Space Bowling
Ural SU Championship 2010
372
918
1793
Tray 2
Ural Regional School Programming Contest 2010
894
387
1808
Chapaev at the Planet Ocean
NEERC 2010 Eastern Subregional
171
1927
1824
Ifrit Bomber
USU Personal Contest 2011
313
1046
1825
Ifrit Bomber 2
USU Personal Contest 2011
363
906
1836
Babel Fish
Ural Championship 2011
282
1146
1839
The Mentaculus
Ural Championship 2011
123
2517
1840
Victim of Advertising
Ural Championship 2011
29
8582
1874
Football Goal
Ural Regional School Programming Contest 2011
1670
191
1875
Angry Birds
Ural Regional School Programming Contest 2011
327
954
1883
Ent's Birthday
Ural Regional School Programming Contest 2011
263
1177
1894
Non-Flying Weather
NEERC 2011 Eastern Subregional
206
1485
1909
Space Recon
Ural Championship 2012
57
4402
1913
Titan Ruins: Alignment of Forces
NEERC 2012 Eastern Subregional
150
1840
1919
Titan Ruins: Transformation of Cylinders
NEERC 2012 Eastern Subregional
134
2045
1927
Herbs and Magic
Ural Regional School Programming Contest 2012
271
1046
1938
Caribbean Triangle
Ural FU Championship 2012
50
4882
1955
Boss, I Can See You!
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
80
3082
1956
Fire Signals
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
105
2412
1963
Kite
Ural FU Personal Contest 2013
574
474
1983
Nectar Gathering
Ural FU Championship 2013
159
1589
1988
Planet Ocean Landing
Ural FU Championship 2013
230
1119
2016
Magic and Science
NEERC 2014 Eastern Subregional
19
8409
2032
Conspiracy Theory and Rebranding
Ural Regional School Programming Contest 2014
311
757
2050
3D-modeling
Ural Championship 2015
65
3069
2054
Astronomy
Ural Championship 2015
20
7672
2067
Friends and Berries
Ural Regional School Programming Contest 2015
705
307
2076
Vasiana
Qualification of Eastern Subregional 2015
17
7812
2099
Space Invader
Ural FU Personal Contest 2014
309
633
2101
Knight's Shield
Ural FU Junior Championship 2016
102
1727
2121
Intersection of Parabolas
Petrozavodsk Summer 2018. umnik_team Contest
190
687
2139
Experiment with Juice
Ural School Programming Contest 2019
22
3999
2148
Insane Shot
Ural School Programming Contest 2019
250
492
2154
Flight on a Cannonball
Ural School Programming Contest 2020
33
2354
2165
Cake Cutter
Ural School Programming Contest 2021
17
1884
2166
Two Roads
Ural School Programming Contest 2022
16
1956
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